Rewrote license activation to use a lock to prevent race-conditions.

unity-project-cached-artifacts/action.yaml

@@ -138,6 +138,16 @@ runs:
       fi
     shell: bash
   - name: "Upload Artifacts."
+    id: upload_artifacts
+    uses: https://github.com/ChristopherHX/gitea-upload-artifact@v4
+    with:
+      name: "${{ steps.get_product_name.outputs.nameShort }}_${{ inputs.artifactSuffix }}"
+      path: "${{ steps.find_output_dir.outputs.fullPath }}"
+      if-no-files-found: error
+      compression-level: ${{ inputs.compressionLevel }}
+    continue-on-error: true
+  - name: "Retry Upload Artifacts (if failed)."
+    if: ${{ steps.upload_artifacts.outcome == 'failure' }}
     uses: https://github.com/ChristopherHX/gitea-upload-artifact@v4
     with:
       name: "${{ steps.get_product_name.outputs.nameShort }}_${{ inputs.artifactSuffix }}"